superheavy
Americanadjective
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Chemistry, Physics. pertaining to any of a series of elements having an atomic number greater than 103.
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heavier than usual for its kind.
a superheavy oil; superheavy magnetic monopoles.
adjective
Etymology
Origin of superheavy
First recorded in 1820–30; super- ( def. ) + heavy ( def. )
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
This superheavy element would be something entirely new to our planet.
From BBC ● Feb. 22, 2025
This leads to a revision of the superheavy landscape in two important ways.
From Science Daily ● Feb. 13, 2024
An overview of the element discoveries and first chemical studies at GSI can be found in the article "Five decades of GSI superheavy element discoveries and chemical investigation," published in May 2022.
From Science Daily ● Feb. 13, 2024
Some have wondered if this new generation of superheavy lift vehicles is needed at all and whether multiple smaller launchers could send spacecraft components into orbit for subsequent assembly by astronauts or robots.
From Scientific American ● Apr. 12, 2022
Teller believed a promising option to fuel a Super bomb would be to use tritium, a superheavy isotope of hydrogen.
From "Big Science" by Michael Hiltzik
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
